“Vintage”??? Shock Brothers power supply

Discussion in 'Shock Brother's DIY Amps' started by RollingBender, Jul 29, 2019.

  1. RollingBender

    RollingBender Tele-Afflicted Vendor Member

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    SW Minnesota
    About a year ago, a band mate of mine was involved in the probate and liquidation on a deceased neighbor’s property. There were some tube goodies so he gathered them and sold them to me for $50 before they got on the auction. In the haul, there were two amps (both 6v6 push-pull power amps), a reverb unit, and this power supply built by the decedent.

    It’s pretty cool from the front...
    C21D6A3B-EE1E-41A2-828E-942B32C0ADAA.jpeg
    Dangerous from the bottom...
    276BD7E2-974D-4A66-8F02-9E46C12B5EEB.jpeg
    ...and even more dangerous from the back.
    D351982B-B873-476A-B20E-FE12D944FD5A.jpeg

    The lugs on the right side put out from zero to 500 VDC depending on how you adjust the 2 chicken head knobs.

    Might come in useful someday!
     
  2. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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    Silver City, New Mexico
    I had to look, but yours is older than mine! Mine is supposed to be recalibrated in 1971. DSCF2608.JPG
    DSCF2607.JPG
    DSCF2606.JPG
    12-25-50 volt x 2, and this one sure has a lot of filtering!
     
  3. RollingBender

    RollingBender Tele-Afflicted Vendor Member

    Posts:
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    Joined:
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    Location:
    SW Minnesota
    I tried hooking this up to an OT today to do some testing and it’s acting weird. Connecting the multimeter leads to the power supply shows everything working as expected. Connecting the transformer (was working fine when I pulled it from the donor amp) causes ridiculously low voltage readings at the power supply lugs.

    Need new caps?

    ***UPDATE***
    Bad switch
     
    Last edited: Aug 2, 2019
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